The YubiKey 5 FIPS Series is a FIPS 140-2 validated lineup that supports strong multi-factor and passwordless authentication, enabling government agencies and regulated industries to meet the highest authenticator assurance level 3 (AAL3) requirements from the NIST SP800-63B guidance. Multiple authentication and cryptographic protocols are supported, including FIDO2/WebAuthn, FIDO U2F, PIV Smart Card, and Yubico OTP. Many of the highest risk and security conscious organizations in the world trust the YubiKey 5 FIPS Series to protect employee access to computers, networks, and online services.